Cheap flights from Sydney to Phnom Penh from $369

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PNH
27 Aug — 3 Sep1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Phnom Penh Pochentong are usually found in February or July, booked 72 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Sydney to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 August 2025.

Round-trip from

$752

One-way from

$369

Popular in

December

Cheapest in

February

Average price

$939
China Southern
  • China Southern
  • 21/10-4/11
  • 2 total stops
  • 55h 50m total
  • Sydney to Phnom Penh
Singapore Airlines
  • Singapore Airlines
  • 15/10
  • 1 total stop
  • 25h 10m total
  • Sydney to Phnom Penh
Highest demand for flights based on searches. 21% potential increase in price ($436 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease ($96 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Sydney to Phnom Penh

Cheapest flights from Sydney to Phnom Penh
Explore the most affordable flight options available from Sydney to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.

Tue 21/1011:15SYD - PNH
1 stop27h 25mChina Southern
Tue 4/1111:55PNH - SYD
1 stop28h 25mChina Southern
Deal found 21/8$752
Thu 16/1016:00SYD - PNH
1 stop25h 10mMultiple Airlines
Mon 20/1015:35PNH - SYD
1 stop24h 50mMultiple Airlines
Deal found 20/8$770
Tue 21/1013:50SYD - PNH
2 stops25h 35mMultiple Airlines
Tue 28/1011:55PNH - SYD
1 stop28h 25mMultiple Airlines
Deal found 20/8$845
Mon 8/920:45SYD - PNH
2 stops25h 30mMultiple Airlines
Fri 12/909:10PNH - SYD
2 stops19h 10mMultiple Airlines
Deal found 20/8$886
Tue 2/912:50SYD - PNH
2 stops32h 25mMultiple Airlines
Mon 15/909:10PNH - SYD
2 stops23h 25mMultiple Airlines
Deal found 21/8$918
Mon 1/910:15SYD - PNH
2 stops34h 10mMultiple Airlines
Sun 14/920:45PNH - SYD
2 stops35h 50mMultiple Airlines
Deal found 21/8$920

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Phnom Penh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 22 August 2025.
Use the filters below to find and compare flights from Sydney to Phnom Penh that are best for you.

Fly from

Sydney

Fly to

Phnom Penh

Route

Depart

Return

Price

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Tue 21/10

11:15-10:40

1 stop27h 25m

Phnom Penh Pochentong

Tue 4/11

11:55-20:20

1 stop28h 25m

$752

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Thu 16/10

16:00-13:10

1 stop25h 10m

Phnom Penh Pochentong

Mon 20/10

15:35-20:25

1 stop24h 50m

$770

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Tue 17/2

08:10-23:30

1 stop19h 20m

Phnom Penh Pochentong

Tue 3/3

11:55-20:20

1 stop28h 25m

$800

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Tue 21/10

13:50-11:25

2 stops25h 35m

Phnom Penh Pochentong

Tue 28/10

11:55-20:20

1 stop28h 25m

$845

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Mon 8/9

20:45-19:15

2 stops25h 30m

Phnom Penh Pochentong

Fri 12/9

09:10-07:20

2 stops19h 10m

$886

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Wed 15/10

16:00-13:10

1 stop25h 10m

$369

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Thu 16/10

16:00-13:10

1 stop25h 10m

$381

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Wed 15/10

21:25-19:15

2 stops25h 50m

$394

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Thu 15/1

11:25-14:35

1 stop31h 10m

$437

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Thu 28/8

20:35-08:45

1 stop15h 10m

$448

Flights are sorted by cheapest return flights first.

Deals found on 22/8

Showing 1-10 of 12 results
1
2

Best time to book a flight from Sydney to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Phnom Penh

How far ahead should I book a flight from Sydney to Phnom Penh?

Use this chart to determine the optimal time to book a return flight from Sydney to Phnom Penh. Price data was last updated on 8 August 2025.

To ensure you get the cheapest price possible for a flight from Sydney to Phnom Penh, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Sydney to Phnom Penh?

Currently, February is the cheapest month in which you can book a flight from Sydney to Phnom Penh (average of $533). Flying from Sydney to Phnom Penh in December is currently the most expensive (average of $1,031). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SYD to PNH?

Find hourly flight availability from Sydney to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 August 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to Phnom Penh at midday. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Sydney to Phnom Penh?

Use this chart to determine the cheapest time to fly return from Sydney to Phnom Penh. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Sydney to Phnom Penh flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from Sydney to Phnom Penh?

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated 22 August 2025.
Read through reviews of airlines operating flights from Sydney to Phnom Penh, such as Singapore Airlines, Cathay Pacific, andChina Southern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Comfort

8.0

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Comfort

8.0

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Comfort

8.0

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Comfort

8.0

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Comfort

8.0

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Sydney to Phnom Penh?

    Departing from Sydney to Phnom Penh will take you 27h 25m. Sydney and Phnom Penh are separated by a distance of 7033 km.

  • What are the cheapest airlines flying from Sydney to Phnom Penh round-trip?

    Currently priced at $670, XiamenAir will fly you from Sydney to Phnom Penh and back. In addition to XiamenAir, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Southern and Malaysia Airlines - these airlines can fly you to your destination from $683 and $701, respectively. XiamenAir is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • Where are the most common stopover locations when flying from Sydney to Phnom Penh?

  • What are some popular things to do or see while on a stopover in Singapore?

    Sentosa, Merlion, and Boat Quay are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Boat Quay can be visited by traveling about 21.6 km, 16.9 km, and 17.3 km respectively from Singapore Changi. Those landing in Singapore looking to spend some time exploring during their stopover can hire a car for about $131 per day.

  • What are points of interest worth seeing during a stopover in Hong Kong?

    Most Hong Kong visitors opt to spend their time at Hong Kong Disneyland, Mid-levels Escalators, and Hong Kong Heritage Discovery Centre. Hong Kong Disneyland, Mid-levels Escalators, and Hong Kong Heritage Discovery Centre can be accessed by travelling approximately 12.6 km, 24.5 km, and 25.8 km, respectively from Hong Kong Intl.

  • Where are the least popular stopover locations for Sydney to Phnom Penh flights?

  • Can I find deals for flights from Sydney to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Sydney to Phnom Penh flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Phnom Penh.

  • Can I find deals for business class flights from Sydney to Phnom Penh?

    Yes. Cheapflights offers flight deals from Sydney to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Phnom Penh?

    Currently, February is the cheapest month in which you can book a flight from Sydney to Phnom Penh (average of $533). Flying from Sydney to Phnom Penh in December is currently the most expensive (average of $1,031). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Fly from Sydney to Phnom Penh on these airlines

Choose from the following airlines for your flight from Sydney to Phnom Penh. Flights are based on user searches made on Cheapflights and were last updated on 22 August 2025.

Top 10 airlines flying from Sydney to Phnom Penh

Discover the top 10 airlines that operate flights from Sydney to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 22 August 2025.
AirlineCheapestAverageFlexibilityOn-time
XiamenAirCheapest$670Average$840FlexibilityNo cancel feeOn-time49%
Search XiamenAir flights
China SouthernCheapest$683Average$1,153FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Malaysia AirlinesCheapest$701Average$1,039FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Vietnam AirlinesCheapest$715Average$837FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest$732Average$1,016FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Philippine AirlinesCheapest$759Average$902FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China EasternCheapest$836Average$981FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Virgin AustraliaCheapest$854Average$1,145FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Cathay PacificCheapest$935Average$1,308FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Thai AirwaysCheapest$1,047Average$1,435FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Sydney to Phnom Penh?

Deals for Sydney to Phnom Penh flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Phnom Penh?

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Can Cheapflights find flights from Sydney to Phnom Penh with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Phnom Penh flexibly with Cheapflights today.

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Of course! You can now track prices for flights from Sydney to Phnom Penh and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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